The highest day temperature in July 2026 was 109°F. The lowest night temperature was 75°F. The average values for day and night temperatures during July were 101.1°F и 80.5°F respectivly.

The average sea surface temperature in July 2026 for Jacksonville was 88.3°F. The maximum and minimum values were 86.6°F and 90.0°F respectively.

Most of the days in July are cloudy but you can also expect sunny or gloomy days.

Precipitation total in July for Jacksonville is 3.9 in. It makes july one of the most rainy months of the year.

The average wind speed in July is 6.3 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Jacksonville in July is 8.5 hours.